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Latest Long Term Ecological Research Network Stories

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2011-06-27 06:55:00

Florida alligators travel upstream and downstream between marshes and the coast By Cheryl Dybas, NSF 'Gators. They're everywhere in freshwater areas of the Southeastern U.S. Now, scientists have found American alligators also swim into the brackish waters of estuaries, places where rivers meet the sea, out into the coastal zone and back again. These "commuter" alligators connect very different habitats, creating links between marine, estuarine and freshwater food webs. "Alligators need...

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2011-05-26 10:05:44

By Cheryl Dybas, NSF Marine scientists discover wave disturbance, nutrient levels affect California giant kelp growth Marine scientists have a new view of the giant kelp in the Pacific Ocean--through a scuba mask and a satellite's "eye." Forests of giant kelp, or Macrocystis pyrifera, are found in temperate coastal regions and are among the most productive ecosystems on Earth. In a melding of data from the beneath the waves and from the skies above, researchers have developed a method for...

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2011-05-19 07:59:53

Scientists at UC Santa Barbara have developed new methods for studying how environmental factors and climate affect giant kelp forest ecosystems at unprecedented spatial and temporal scales. The scientists merged data collected underwater by UCSB divers with satellite images of giant kelp canopies taken by the Landsat 5 Thematic Mapper. The findings are published in the feature article of the May 16 issue of Marine Ecology Progress Series. In this marriage of marine ecology and satellite...

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2011-05-02 05:55:00

Researchers eavesdropping on complex signals from a remote Wisconsin lake have detected what they say is an unmistakable warning--a death knell--of the impending collapse of the lake's aquatic ecosystem. The finding, reported April 28 in the journal Science by a team of researchers led by Stephen Carpenter, an ecologist at the University of Wisconsin-Madison (UW-Madison), is the first experimental evidence that radical change in an ecosystem can be detected in advance, possibly in time to...

2011-02-11 07:49:36

Scientists address climate change effects on ecosystems from grasslands to forests to open ocean Human activities such as burning of fossil fuels and land use change have increased atmospheric carbon dioxide by 40 percent since the start of the industrial revolution, researchers have found. The result is a hotter Earth, with warmer average temperatures around the globe and a future climate system that will be more variable, and with more extreme events, says Scott Collins, a scientist at the...

2010-12-21 23:26:42

In a study published December 20 in the Proceedings of the National Academy Sciences (PNAS), a team of researchers including University of New Hampshire scientists Wilfred Wollheim, William McDowell, and Jody Potter details findings that show emissions of the potent greenhouse gas nitrous oxide from global rivers and streams are three times previous estimates used by the Intergovernmental Panel on Climate Change "“ the leading international body for the assessment of climate change....

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2010-10-24 08:17:01

Aspiring ecologist Ashley Golphin, an undergraduate at Kent State, describes the challenges and rewards of conducting research on tropical stream ecosystems in Puerto Rico during the summer rainy season Puerto Rico, the island of enchantment, is home to the Tropical Ecology and Evolution Internship at El Verde Field Station, University of Puerto Rico. El Verde is located in the Luquillo Experimental Forest, better known to the locals as El Yunque National Forest. El Yunque, the only tropical...

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2010-08-05 08:35:00

Extensive seagrass beds, mangrove forests to be studied With its vast 1.5 million acres of mangrove swamps, sawgrass prairies and subtropical jungles, could the Florida Everglades--the famous river of grass--be affected by the Gulf oil spill? While current estimates are that little if any oil entered the Loop Current or reached the Everglades, this area is a significant national natural resource, and to study the effects of the spill on seagrasses and mangrove forests in and near the...

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2010-06-18 07:45:47

Cost-effective approach could help predict climate change impacts for all marine ecosystems In a report published in this week's issue of Science, a team of oceanographers, including MBL (Marine Biological Laboratory) Ecosystems Center director Hugh Ducklow, outline a polar ocean observation strategy they say will revolutionize scientists' understanding of marine ecosystem response to climate change. The approach, which calls for the use of a suite of automated technologies that complement...

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2010-02-23 09:40:00

Results from Long-Term Ecological Research show importance of resources and processes supplied by ecosystems Humans are sustained by a multitude of processes and resources in the environment around us. These benefits are called "ecosystem services," and include products like clean drinking water and the provision of foods such as crops and spices. On Thursday, March 4, the National Science Foundation (NSF) will host a symposium titled, "Ecosystem Services in a Changing World: Perspectives...


Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'